EP3813922B1 - Binäres fluidregelventilsystem - Google Patents
Binäres fluidregelventilsystem Download PDFInfo
- Publication number
- EP3813922B1 EP3813922B1 EP19831434.6A EP19831434A EP3813922B1 EP 3813922 B1 EP3813922 B1 EP 3813922B1 EP 19831434 A EP19831434 A EP 19831434A EP 3813922 B1 EP3813922 B1 EP 3813922B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control valve
- fluid
- fluid control
- restraining element
- energy storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000012530 fluid Substances 0.000 title claims description 103
- 238000004146 energy storage Methods 0.000 claims description 31
- 230000000452 restraining effect Effects 0.000 claims description 29
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- 238000004891 communication Methods 0.000 claims description 2
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- 230000004044 response Effects 0.000 claims 1
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- 239000000463 material Substances 0.000 description 29
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- 208000008589 Obesity Diseases 0.000 description 4
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- 206010033307 Overweight Diseases 0.000 description 3
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- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
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- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- 229920001606 poly(lactic acid-co-glycolic acid) Polymers 0.000 description 2
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- 239000004632 polycaprolactone Substances 0.000 description 2
- SJZRECIVHVDYJC-UHFFFAOYSA-N 4-hydroxybutyric acid Chemical compound OCCCC(O)=O SJZRECIVHVDYJC-UHFFFAOYSA-N 0.000 description 1
- 229940006015 4-hydroxybutyric acid Drugs 0.000 description 1
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/0003—Apparatus for the treatment of obesity; Anti-eating devices
- A61F5/0013—Implantable devices or invasive measures
- A61F5/003—Implantable devices or invasive measures inflatable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/0003—Apparatus for the treatment of obesity; Anti-eating devices
- A61F5/0013—Implantable devices or invasive measures
- A61F5/0036—Intragastrical devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
- F16K31/1264—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded with means to allow the side on which the springs are positioned to be altered
Definitions
- the present invention generally relates to the field of fluid control valves and more particularly the field of single-opening, binary fluid control valves that are initially closed and can be opened one time only to allow a fluid transfer between two spaces separated by a fluid impermeable barrier.
- Areas of application for valves of this type include medical device balloons, in particular gastric balloons for weight loss.
- Intragastric balloons in their uninflated state can be placed endoscopically or positioned using other methods and, once in place, are typically filled with a filling fluid through a thin catheter or conduit extending up the esophagus from the device in the stomach to an external fluid supply. This catheter is then removed from the device and extracted from the body through the esophagus. Upon removal of the catheter, the catheter system must seal the fluid communication between the interior of the device and the gastric environment to maintain the balloon in its filled state for the proscribed time.
- Endoscopic procedures In some gastric balloons an endoscopic procedure is used to remove the balloon at the end of its proscribed time. Endoscopic procedures, while generally safe, inherently carry some risk to the patient, are invasive, require the patient to visit an endoscopy facility, and require the services and costs of an endoscopist. For these reasons various self-opening or non-invasively-triggered fluid release mechanisms or valves have been developed.
- the present invention provides for a fluid control valve as defined by claim 1, wherein preferred embodiments of the invention are laid down in the dependent claims.
- the invention relates to devices and methods for releasing a fluid from a reservoir.
- the invention relates to self-opening release valves for emptying balloon-like devices. More particularly the invention relates to self-opening valves that open rapidly after initiation of the opening process, where self-opening generally implies no direct human action. In some variations, the valves can achieve full aperture opening in a rapid manner.
- the present disclosure includes fluid release mechanisms for use with fluid filled devices and are especially useful in gastric balloons for occupying a space within the patient's body.
- a medical device includes a fluid impermeable surface material forming a device body having an interior reservoir, the device body having a deployment profile and expandable to an active profile upon receiving the fluid filler material within the interior reservoir; a fluid path for evacuation of the fluid, a plug for sealing the fluid path, an energy storage element disposed to remove the plug from the fluid path, and a release material disposed to hold the plug in a sealing configuration in the evacuation path until the strength of the release material degrades below that which is needed to resist the energy storage element.
- FIG. 1 illustrates schematic block diagram of an exemplary fluid fillable balloon device; in particular, it illustrates a gastric balloon device assembly 100.
- FIG. 2 is an illustration of device 100 in place in a patient's stomach after it has been inflated but before the filling tube has been removed.
- the device generally comprises two states of interest: a pre-deployment or uninflated configuration and a deployed, inflated or active configuration; the deployed configuration is shown.
- the device is inflated with a fluid delivered through a tube 110, also referred to herein as a catheter or conduit, wherein the tube may pass through a lumen in the wall of the balloon device or is coupled to a fluid path 112 between the exterior and the interior of the balloon device.
- the wall 102 of the balloon is fabricated from a thin film material such as, for example, polyurethane.
- the tube comprises a balloon end or internal section 110A that extends through fluid path 112 into the central enclosed space or reservoir 104 of device 100.
- internal section 110A stops short of the reservoir 104.
- the conduit 110 can be removed from the device once inflation is completed or after partial inflation. When the conduit is removed, fluid path 112 must be sealed to prevent the inflation fluid from leaking out, where sealing is accomplished by fill valve 113, illustrated in FIG. 1 , which may comprise an external section 113B, an internal section 113A.
- elements of the fill valve 113 have components installed inside conduit 110 as well as in fluid path 112.
- balloon device may be self-inflating, wherein, for example, two reactive chemicals pre-stored inside the uninflated balloon combine once the balloon is in place.
- the combined materials such as an acid and bicarbonate of soda, give off a gas that inflates the balloon.
- release valve 126 is a single-use device; that is, once it opens to release fluid it cannot close, or at least is not closed, again.
- the valve may comprise a patch 128 of degradable material, which degrades or opens when exposed to either the natural stomach fluids or the filling fluid contained within reservoir 104. Once patch 128 degrades, the filling fluid is free to escape into the patient's stomach. In certain cases, the degradation rate of the patch, and the resulting flow rate, cannot be controlled adequately.
- the release valves described herein improve the timing and adequacy of the flow rate of the release of filler fluids by controlling the degrading fluid and by providing a
- FIG. 3A is an exemplary mechanical schematic diagram of a fluid control valve system 10 that has a binary flow condition or operation, where "binary" indicates that the valve comprises an open state and a closed state. Where in the closed state the valve is closed to either fully or significantly prevent fluid flow. In the open state, the valve allows partial or maximum fluid flow.
- a mechanical schematic diagram is a simplified representation of the functional components of a mechanical system and the mechanical relationship therebetween. It does not necessarily represent the physical forms of the mechanical elements nor the physical layout, attachment, or configuration of any actual components.
- control valve system 10 is achieved through the addition of an energy storage device disposed to force the valve to the fully open condition.
- a valve system 10 is disposed between two otherwise isolated spaces, spaces 510 and 520, at least one of which contains a fluid 415A.
- the second space also contains a fluid 415B.
- a valve system 10 includes three core mechanical components.
- the main component is a valve mechanism 410 that blocks or unblocks the flow of fluid from one space to the other. Schematically in FIG.
- valve mechanism 410 is depicted as comprising a two element gate (412, 414), where one element of the gate is a base 414 and a second element is a traveler 412 where traveler 412 and base 414 abut tightly enough to block the flow of any fluid 415A/415B through valve mechanism 410.
- a mechanical schematic only represents functional elements and is not intended to indicate the physical form of the element effecting that function.
- valve system 10 comprises a second core component, an energy storage device 420, for example a spring, where the energy storage device is disposed to move traveler 412 away from base 414.
- an energy storage device 420 for example a spring
- energy storage device 420 is initially in a high energy storage configuration and disposed between head 418 and base support 416 with a distance D1 between head 418 and base support 416.
- the compressed energy storage device 420 generates a force F directed to push traveler 412 away from base 414, as indicated by the arrowheads at the ends of spring 420.
- Energy storage device 420 does not need to be attached to either head 418 or base support 416 (or, equivalently base 414 or traveler 412).
- one or both sides of the device can be connected to the respective adjacent head 418 or base support 416.
- the third core component of a valve system 10 is a restraining element 425.
- restraining element 425 is also disposed between head 418 and base support 416, where restraining element 425 is in tension T which holds head 418 and base support 416 from moving apart, as indicated by the arrowheads showing the forces felt by head 418 and base support 416.
- Valve system 10 switches between the no-flow condition, shown schematically in FIG. 3A , and the full-flow condition, shown schematically in FIG. 3B , when restraining element 425 loses its ability to to counteract the force F of energy storage device 420.
- restraining element 425 can be designed to lose strength by changing its temperature, by hydrolysis, by dissolution, by oxidation, or by any means appropriate for the restraining material and operational environment.
- restraining element 425 breaks when the spring force exceeds the remaining strength of element 425, as illustrated in the figure, but element 425 may also lose its ability to maintain the required tension if it plasticly deforms, that is, stretches permanently, or elastically deforms.
- restraining element 425 allows energy storage device 420 to increase the distance between base support 416 and head 418 to D2, thereby allowing fluid flow through valve mechanism 410 as shown by the arrows.
- head 418, traveler 412, and a portion of restraining element 425 no longer have a connection to base support 416 indicating that those parts of fluid control valve system 10 are free to float away by a distance greater than D2.
- energy storage device 420 may be attached to head 418 instead of base support 416 while in yet other variations energy storage device 420 may connect head 418 and base support 416 even after opening, in which case D2 is the length of energy storage device 420 in its low energy condition (e.g., no longer in compression). In yet other variations energy storage device 420 is not physically attached to either base support 416 or head 418, in which case it may become a free-floating element once the constraining tension of restraining element 425 is removed.
- FIGS. 3C , 3E , and 3F are alternative mechanical schematics of the same fluid control valve system as depicted in FIG. 3A .
- FIG. 3C illustrate a variation in which base 414 and traveler 412 sandwich energy storage device 420 between themselves directly (that is, the spring sits between the two portions and directly bears on them to move them apart) while restraining element 425 is directly or indirectly attached to the exterior of the "sandwich" to hold base 414 and traveler 412 tightly together, compressing energy storage device 420.
- the mechanical schematic of FIG. 3D illustrates the after-release mechanical relationships of the elements in the schematic of FIG. 3C .
- FIG. 3E illustrates schematically a variation of the valve system in which base 414 is in the form of a fluid path 450 which channels fluid 415 between the isolated spaces 510, 520. Traveler 412 forms a plug or stopper that blocks fluid path 450 when the valve system is in its normally closed condition. Drawn in this fashion, the mechanical schematic of FIG.3E helps clarify the use of a control valve system 10 in fluid filled balloon applications an embodiment of which is discussed below.
- control valve system 10 it is possible to combine two or more functions into one physical element.
- the base, traveler, and restraining element are all embodied in a single close-ended tube 530.
- tube 530 is a sealed fluid path between spaces 510 and 520.
- Energy storage device 420 is disposed to apply a force that is directed to pull the two ends 412, 414 of tube 530 apart.
- the two ends do not move apart while the walls of tube 530 remain strong enough to withstand the applied force.
- the restraining element loses strength, as it is designed to do in specific environments, it will eventually allow the spring to pull tube 530 into two pieces, forming traveler 412 and base 414 and essentially allowing flow through the base support 416, as shown in FIG 3G .
- base 414 and traveler 412 may comprise two jaws of a hinged component, with energy storage device 420 acting to open the hinge and restraining element 425 holding the hinge closed until element 424 loses strength as designed.
- FIG. 4 is an exploded view of one variation of valve system 10 with an exterior energy storage device 420 in the form of a coil spring, where exterior indicates the spring 420 is exterior to the flow path through the valve system 10.
- valve 410 of FIG. 3A comprises traveler 412 in the form of a plug or pin, base 414 in the form of a socket into which plug 412 is inserted, and a compliant gasket 427 that surrounds plug 412 to ensure a snug and leak-proof fit when plug 412 is inserted into socket 414.
- this variation of valve system 10 also comprises energy storage device 420 implemented as a coil spring disposed between a spoked head 418 and a substantially identical spoked base support 416, wherein restraining element 425 is a suture-like release material that is looped or stitched between the spokes of head 418 and base support 416.
- Head 418 and base support 416 each have a central hole large enough to accommodate plug 412 surrounded by gasket 427.
- release material 425 is stitched in a pattern to minimize tilting of head 418 relative to base support 416 both before and after initial release material breakdown.
- plug 412 comprises an extended body 412A with a larger diameter pinhead 412B at one end, where the length of the extended body is designed to be longer than the length of the compressed coil spring 420 plus the thicknesses of the head 418 and base support 416, and the diameter of pinhead 412B is designed to be larger than the hole in head 418 to prevent plug 412 from fully entering or passing through the hole in head 418.
- the spring, head, base support, and release material comprise a valve release subassembly 440.
- socket 414 is essentially a cylindrical tube disposed between the two spaces comprising a central lumen that allows fluid flow between the two spaces.
- socket 414 is fabricated as a socket subassembly 442 that allows the socket to be attached to the wall 102 separating the two spaces, as will be described below.
- valve system 10 is assembled by inserting plug 412 (with gasket 427), through the lumen in valve release subassembly 440 formed by the open central region of coiled spring 420 such that a tip 419 of plug 412 extends beyond the end of valve release subassembly 440 by a designed length.
- the exposed tip 419 of plug 412, surrounded by gasket 427 is subsequently inserted into socket subassembly 442, where the gasketed tip 419 seals the lumen in socket subassembly 442 against fluid flow.
- tip 419 of plug 412 is bulbous to compress gasket 427 against the innermost surface of socket assembly 442 while providing a leading edge that guides tip 419 into the lumen.
- valve system 10 can be installed to control fluid flow between two spaces separated by a wall 102 of thin film material. While FIGS. 1 and 2 suggest the use of a valve system 10 to release fluid from a gastric balloon fabricated from thin film material, this is but an exemplary use.
- the valves described herein may be used in any situation where there is a fluid impervious barrier material separating two spaces and where fluid may be present on either or both sides of the barrier material.
- a valve system 10 can be used to temporarily separate two reactive chemicals where one chemical is in fluid form.
- socket subassembly 442 is attached to wall 102, through which a hole is provided for fluid flow.
- a hole is provided for fluid flow.
- socket assembly 442 comprises three parts; a retaining ring 444, a wall anchor 310, and a gasket jacket 210.
- Gasket jacket 210 is a thin-walled, hollow cylinder.
- the inner wall of the hollow cylinder is sized, and sometimes shaped, to grip the compliant, gasketed tip 419 of plug 412.
- the inner wall may be tapered to have a wider opening to accept plug 412 and to guide the tip 419 into a narrower portion wherein the compliant gasket is squeezed to make a tight fit.
- the inner wall may be inscribed with a number of circumferential ridges and grooves to better grip the compliant gasket.
- the inner wall may have an indented groove with a circular segment cross-section that matches the bulbous tip 419 of the gasketed plug; this groove acts a detent to provide a positive hold on tip 419.
- Wall anchor 310 is the primary means to attached gasket jacket 210 to a thin-film wall 102. It is used to pinch a shaped section of wall 102 against the exterior of gasket jacket 210. This pinching behavior is illustrated in the exploded, cross sectional view of socket assembly 442 of FIG. 5B .
- the wall section starts out as a flat sheet but takes on the illustrated "stovepipe hat” shape after being stretched over a mandrel. Gasket jacket 210 is then inserted inside the wall section, most easily from the "brim" side of the stovepipe hat while wall anchor 310 is slipped over the exterior of the "pipe” section of the stovepipe, thereby trapping the wall material between jacket 210 and anchor 310.
- anchor 310 is fabricated from a soft material, for example a plastic, and toleranced to enclose the wall material without pulling or tearing it. Finally, a retaining ring 444 is placed over anchor 310 to squeeze it tightly against wall material 102, pinching the material against gasket jacket 210.
- FIG. 6 illustrates one method for inserting plug 412 (with valve release subassembly 440 in place) into a socket assembly 442 that has been pre-installed in a wall 102.
- gasket 427 is extended by a convenient length to form a gasket extension 427A that extends a convenience distance beyond plug tip 419.
- This extended length 427A is not filled by any solid and can easily be threaded through the lumen in gasket jacket 210.
- a portion 427B of gasket extension 427A emerges through the lumen in gasket jacket 210 on the opposite side of wall 102 from plug 412. Gasket extension 427A moves with relative ease through gasket jacket 210 because there is no plug inside this portion of the gasket.
- Tip 419 of plug 412 is drawn into gasket jacket 210 by pulling on gasket extension 427B until tip 419 is captured by jacket 210.
- tip 419 and the gasket around it cannot pass fully through the lumen, so continuing to pull on gasket extension 427B creates an increasing tension on gasket 427.
- a preferential detachment point 429 is created in gasket 427 by weakening the gasket at a pre-determined location by partially cutting through the gasket, creating a circumferential score, or otherwise weakening the gasket at the desired location.
- the desired location separates gasket 427 from gasket extension 427A.
- the valve is installed in a fluid impervious wall 102 separating two spaces on either side of the wall, where at least one space has a fluid.
- Plug 412 substantially fills the lumen in gasket jacket 210 and presses gasket 427 against the inner wall of the lumen in gasket jacket 210 to seal the lumen against fluid transfer.
- the space in which release valve subassembly 440 is located will be designated as first or interior space and is bounded by wall 102.
- release material 425 is susceptible to deterioration when exposed to the environmental conditions in the interior space. In many variations the release material is filamentary.
- release materials that are available in filamentary suture form can include Polyglycolide (PGA), Polydioxanone (PDS), Poly(lactic-co-glycolic acid) (PLGA), Polylactide (PLA), Poly (4-hydroxybutyric acid) (P4HB), Polyglactin 910, and Polycaprolactone (PCL).
- PGA Polyglycolide
- PDS Polydioxanone
- PLGA Poly(lactic-co-glycolic acid)
- PLA Polylactide
- P4HB Poly (4-hydroxybutyric acid)
- PCL Polycaprolactone
- the interior space may be filled with a fluid which, over a designed period of time, dissolves or hydrolyses the suture.
- release material 425 may be melted or softened by increasing the temperature in the interior space.
- release material 425 Independent of the way release material 425 is weakened, after a designed time period the residual strength of release material 425 is inadequate to constrain the stored energy in spring 420.
- spring 420 expands it causes head 418 and base support 416 to separate. By definition, as they separate the distance between them enlarges.
- extended body 412A Prior to release material deterioration, extended body 412A reached between the top of head 418, through base support 416, and into socket 414. As the distance between head 418 and base support 416 increases, extended body 412A is pulled into valve release subassembly 440 from the base support end, plug 412 being prevented from entering head 418 by pinhead 412B. As extended body 412A is pulled into valve release subassembly 440 it is automatically extracted from socket 414, opening fluid control valve system 10 to allow fluid transfer between the interior space and a second or exterior space exterior to the wall 102.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Child & Adolescent Psychology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Obesity (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Prostheses (AREA)
Claims (15)
- Fluidregelventil zum Regeln einer Fluidströmung in einem Ballon einer medizinischen Vorrichtung, wobei das Ventil aufweist:eine Basis (414), die durch sich hindurch einen Fluidpfad (450) definiert, so dass der Fluidpfad (450) fluidisch zwischen einen ersten Raum und einen zweiten Raum gekoppelt ist;eine Verfahrstruktur (412), die bezüglich der Basis (414) zwischen einer offenen Konfiguration und einen geschlossenen Konfiguration bewegbar ist, wobei die Verfahrstruktur (412) in der offenen Konfiguration eine Fluidströmung durch den Fluidpfad (450) zwischen dem ersten Raum und dem zweiten Raum zulässt und wobei die Verfahrstruktur (412) in der geschlossenen Konfiguration eine Strömung durch den Fluidpfad (450) verhindert;eine Energiespeichervorrichtung (420), die zwischen der Verfahrstruktur (412) und der Basis (414) angeordnet ist,dadurch gekennzeichnet, dass das Fluidregelventil ferner aufweist:
ein Beschränkungselement (425), das die Energiespeichervorrichtung (420) im Zustand der Energiespeicherung, in der die Verfahrstruktur (412) in der geschlossenen Konfiguration ist, einschränkt, wobei das Beschränkungselement (425) konfiguriert ist, derart zu degradieren, dass die Degradation des Beschränkungselements (425) die Energiespeichervorrichtung (420) aus dem Zustand der Energiespeicherung entlässt, damit bewirkt wird, dass sich die Verfahr-Einrichtung bezüglich der Basis (414) in die offene Konfiguration bewegt. - Fluidregelventil nach Anspruch 1, wobei das Beschränkungselement (425) konfiguriert ist, als Reaktion auf eine Temperaturänderung, eine Hydrolyse, eine Dissolution und eine Oxidation zu degradieren.
- Fluidregelventil nach Anspruch 1, wobei das Beschränkungselement (425) konfiguriert ist, als Reaktion auf ein mit dem Beschränkungselement (425) in fluidischer Kommunikation stehendes Fluid zu degradieren.
- Fluidregelventil nach Anspruch 1, wobei das Beschränkungselement (425) konfiguriert ist, im Lauf der Zeit zu degradieren.
- Fluidregelventil nach Anspruch 1, wobei sich das Beschränkungselement (425) in dem ersten Raum befindet und von dem zweiten Raum isoliert ist.
- Fluidregelventil nach Anspruch 1, wobei sich das Beschränkungselement (425) in dem zweiten Raum befindet und von dem ersten Raum isoliert ist.
- Fluidregelventil nach Anspruch 1, wobei sich das Beschränkungselement (425) außerhalb des Fluidpfads (450) befindet.
- Fluidregelventil nach Anspruch 1, wobei das Beschränkungselement (425) einen Teil des Fluidpfads (450) bildet.
- Fluidregelventil nach Anspruch 1, wobei sich das Beschränkungselement (425) innerhalb des Fluidpfads (450) befindet.
- Fluidregelventil nach Anspruch 1, wobei die Verfahrstruktur (412) in der offenen Konfiguration oder in der geschlossenen Konfiguration eine Binärkonfiguration aufweist, so dass das Fluidregelventil ein Regelventil für binäre Flüssigkeiten aufweist.
- Fluidregelventil nach Anspruch 1, wobei die Verfahrstruktur (412) und das Beschränkungselement (425) einen einzelnen Teil aufweisen.
- Fluidregelventil nach Anspruch 1, wobei die Verfahrstruktur (412) bei einer Degradation Fluid von dem Beschränkungselement (425) trennt, um die Energiespeichervorrichtung (420) aus dem Zustand der Energiespeicherung zu entlassen.
- Fluidregelventil nach Anspruch 1, wobei die Energiespeichervorrichtung (420) eine Feder ist.
- Fluidregelventil nach Anspruch 1, wobei die Energiespeichervorrichtung (420) konfiguriert ist, die Verfahrstrukur (412) von der Basis (414) weg in die offene Konfiguration zu bewegen.
- Fluidregelventil nach Anspruch 1, wobei die Verfahrstrukur (412) und die Basis (414) in der geschlossenen Konfiguration einen einzelnen Schlauch mit geschlossenem Ende aufweisen.
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EP23208874.0A EP4295820A3 (de) | 2018-07-06 | 2019-07-08 | Binäres steuerventilsystem für flüssigkeiten |
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US201862694813P | 2018-07-06 | 2018-07-06 | |
PCT/US2019/040869 WO2020010359A1 (en) | 2018-07-06 | 2019-07-08 | Binary fluid control valve system |
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EP23208874.0A Division EP4295820A3 (de) | 2018-07-06 | 2019-07-08 | Binäres steuerventilsystem für flüssigkeiten |
EP23208874.0A Division-Into EP4295820A3 (de) | 2018-07-06 | 2019-07-08 | Binäres steuerventilsystem für flüssigkeiten |
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EP3813922A1 EP3813922A1 (de) | 2021-05-05 |
EP3813922A4 EP3813922A4 (de) | 2022-06-29 |
EP3813922C0 EP3813922C0 (de) | 2023-12-20 |
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EP23208874.0A Pending EP4295820A3 (de) | 2018-07-06 | 2019-07-08 | Binäres steuerventilsystem für flüssigkeiten |
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US (3) | US11098813B2 (de) |
EP (2) | EP3813922B1 (de) |
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- 2019-07-08 WO PCT/US2019/040869 patent/WO2020010359A1/en unknown
- 2019-07-08 EP EP23208874.0A patent/EP4295820A3/de active Pending
- 2019-07-08 CN CN202111588091.1A patent/CN114376777B/zh active Active
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EP3813922C0 (de) | 2023-12-20 |
CN114376777B (zh) | 2024-02-02 |
CN112638464A (zh) | 2021-04-09 |
WO2020010359A1 (en) | 2020-01-09 |
EP3813922A4 (de) | 2022-06-29 |
EP3813922A1 (de) | 2021-05-05 |
EP4295820A3 (de) | 2024-02-28 |
CN114376777A (zh) | 2022-04-22 |
EP4295820A2 (de) | 2023-12-27 |
US20240084908A1 (en) | 2024-03-14 |
US20210341069A1 (en) | 2021-11-04 |
US20200011442A1 (en) | 2020-01-09 |
US11828377B2 (en) | 2023-11-28 |
CN112638464B (zh) | 2021-12-14 |
US11098813B2 (en) | 2021-08-24 |
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